Pump-valve.



UNITED srarnsrarnnr ornrcn. GEORGE 1. ABOHN. BROOKLINE, MASSAGI -IUSETTS, ASSIGNOR TO THE BILAKE 85 KNOWLES STEAM PUMP WORKS, A, CORPORATION OF NEW JERSEY.

PUMP-VALVE.

To all whom it may concern.-

Be it known that I, GEORGE P. Anonn, a citizen of the United States, residing at Brookline, county of Norfolk, and State of Massachusetts, have invented certain new and useful Improvements in Pump-Valves, fully described and represented in the fol; lowing specification and the accompanying drawings, forming a part of the same. This invention relates to pump valves of that class in which the valve is rotated slightly on each lifting movement, so that the portions of the valve resting upon the valve seat ribs are constantly changed and undue Wear of the valve prevented, .the especial object being to provide a simple and eflicient valve backing by which the proper rotation of the valve shall be assured.

In the accompanying drawings forming a part of this specification, the invention is shown as applied in preferred forms, and these constructions will now be described in detail and the features forming the invention then specifically pointed out in the claims.

. central section of the valve seat, valve and backing. Fig. 2 is a similar view showing a slightly modified construction. Fig. 3 is a plane layout of the valve seat of Figs. 1 and 2.

Referring now particularly to Fig. 1, A is the valve seat having its ribs 10 inclined as shown in Fig. 3, so that water flowing through the passages between the ribs acts with a tangential component upon the valve to rotate it at each lift. Upon the valve seat A is the valve B, shown as a rubber metalbacked valve of common type, sliding vertically upon the valve stem 11 screwed into the valve seat, as usual. The valve spring 12 is held between the guards 13, 14, the latter, in the construction now being described and shown in Fig. 1, being formed by the fixed head of the valve stem 11. The guard 13 is formed on a sleeve 15 sliding on an enlargement 16 of the valve stem, this enlargement forming a piston below which is a water chamber -1, between the piston 16 and the top of the valve B, this water chamber 1 connecting to the space outside the sleeve 15 through holes 2 in the sleeve. These holes 2 are arranged so as to be opened below the piston 16 when the valve is closed, but to be Specification of Letters Patent.

Application filed November 7, 1913.

Patented Nov. 3, 1914.

Serial No. 799,672.

closed by passing over the iston 16 immediately upon the lifting o the valve with guard 13. The guard 13 preferably is formed with a narrow bearing rib or studs 4 bearing upon the metal back of the valve, and finished to reduce friction between the guard and valve.

The operation of the construction is as follows :As the valve B lifts, the openings 2 are closed by passing over the piston 16, and the ressure of the opening valve upon the liquld in the chamber 1 then forces thewater out between the bearing 4 and the back of the valve B, thus forming a liquid antifriction bearin between the guard and valve. The valve t us rotates with very little friction, and the tangential component of the water pressure as it passes the valve from the inclined seat ribs 10 is suflicient to rotate the valve slightly at each lift and thus constantly bring new surfaces of the valve upon the ribs 10.

The construction shown in Fig. 2 is the same as that of Fig. 1, except thatthe top spring guard is loose on the valve stem 11, this valve guard 17 being carried by a sleeve 18 within sleeve 15 of the lower guard 13. This sleeve 18 thus forms a piston and performs the functions of the piston 16 0f the construction shown in Fig. 1.

The operation of the construction shown in Fig. 2 is the same as previously described, except that the upper valve guard 17 and sleeve 18 may rotate somewhat in the rotatiop of the valve, although this is not essentia The invention provides a simple, cheap and efficient valve backing, in which the weight of the revolving parts is quite small, so that with the reduction of friction resulting from the liquid bearing between the bottom valve guard and the valve, an efficient rotating action can be secured with the inclined seat ribs shown.

While the invention is intended especially for use with a valve seat having ribs inclined or otherwise so formed that the water acts upon the valve to rotate it, it will be understood that this backing may be used, also, with any other suitable arrangement for rotating the valve, as, for instance, with any Well-known or suitable type of rotating valve in which the rotating effect is secured by inclined surfaces or wings on the valve itself.

JlO

What I claini'is 1. The combination with a reciprocating and fiuiol rotated valve, of a spring backing for the valve on which the valve is free to rotate, and. means for forcing water between the backing and valve by the opening of the valve to form a liquiol bearing for the retating valve.

2. The combination with a reciprocating and fluid. rotated valve, of a valve backingincluding a sleeve bearing upon the valve, and, a pistonupon which the sleeveslicies with a water chamber Within the sleeve be-= tween the" piston and valve whereby the opening of the valve moves, the sleeve to force water outward from the chamber lietween the-sleeve and valve to form a liquid bearing for the rotating valve "3, The combination with a reciprocating andvfluiclrota'ted valve, of a valve backing including a sleeve bearing upon the valve; and a piston upon which the sleeve slides with. a water chamber within. the sleeve be tween the pistonancl valve, said sleeve having oneor more openings connecting the water chamber to the water space outside the'sleeve in the closed position of the valve and closed by the piston as the valve opens, wherebythe opening of the valve moves the sleeve to force water outward. from, the chamber between the sleeve ancl valve to form a liquid hearing for the rotating valve, 4h The comhinationwith' a reciprocating anrl fluiol rotated; valve of a haclnng inclnoling' a valve spring, a spring guarcl hearing npon the back of the valve and carrying a from the liquid chamber through the sleevearranged to be closed by movement over the piston as the valve opens, whereby the opening of the valve forces liquid from the chamher outward between the spring guard. and valveto form a liquid bearing for the retating valve.

5. The combination with a pump valve and its valve seat formed with inclinea ribs to rotate the valve by the fluid passing through the valve seat of a valve backing including a sleeve bearing upon the valve, and a piston upon which the sleeve slides with a water chamber within the sleeve between the piston anfi. valve, whereby the opening. of the valve moves the sleeve to force water outward from the chamber between the sleeve and; valve to form a liquid. bearing for the rotating valve" .i In testimong whereof, l have hereunto set my hand, in t e presence of two subscribing witnesses.

e-nonen r. aeonn.

' Witnesses: I

OHN J Finest; Enio J. LKFNER, 

